Actually, the 125W rating for 813 is for ICAS condition,
while the 125W for the 4-125 is for the CCS condition.
The 813 CCS rated anode power is 100W.
73,
Traian
Firson Maryutenli wrote:
> Why beam tetrode like 813 more efficient in term of dissp, for 125 watt
> plate dissipation, he can give 250 watt output for AB1.
> 4-125A and 813 have same plate dissp, but 813 can give more output than
> 4-125A.
>
> Firson - YD0LZH
>
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> masing-masing Rp 250.000 tunai
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